4 years ago

What is earth revolution estimated time and direction

Physics

1 answer:

const2013 [10]4 years ago

3 0

How long it takes to earth to revolve completely on its Axis

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If the coefficient of kinetic friction between a crate and the floor is 0.20,

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0.3 newtons

Explanation:

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3 years ago

A force of 20 N acts over an area of 2 m2. What is the pressure?

ycow [4]

$\text{Given that,}\\\\\text{Force, F = 20 N.} ~ \\\\ \text{Area , A = 2 m}^2 . \\\\ \text{Pressure, P =? }\\\\P = \dfrac FA = \dfrac{20}2 = 10~~ \text{Nm}^{-2}$

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If there is a break at any point in a series circuit the current will

Tomtit [17]

Answer:

not work

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in a series circuit, everything meaning the electrons are flowing on one path, therefore, it wouldn continue to work.

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3 years ago

Students create a standing wave

kenny6666 [7]

wavelength =wavevelocity

--——————

Frequency

Frequency = 1/T => 1 / 6.73 = 0.1486

Wave velocity = L/T => 3.75 / 6.73 = 0.5572

Therefore, wave length = 0.5572/0.1486 = 3.75m

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3 years ago

The mass of the earth is 5.98 1024 kg, the mass of the moon is 7.36 1022 kg, and the distance between the centers of the earth a

Setler [38]

Answer:

x_{cm} = 4.644 10⁶ m

Explanation:

The center of mass is given by the equation

$x_{cm}$ = 1 / $M_{total}$ ∑ $x_{i} m_{i}$

Where M_{total} is the total masses of the system, $x_{i}$ is the distance between the particles and $m_{i}$ is the masses of each body

Let's apply this equation to our problem

M = Me + m

M = 5.98 10²⁴ + 7.36 10²²

M = 605.36 10²² kg

Let's locate a reference system located in the center of the Earth

Let's calculate

x_{cm} = 1 / 605.36 10²² [Me 0 + 7.36 10²² 3.82 10⁸]

x_{cm} = 4.644 10⁶ m

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3 years ago